如何使用.mtl网格加载和显示.obj文件？尝试创建一个可以与之交互的引擎

Question

我希望将blender.obj和.mtl文件同时加载到一个窗口中。然后我想使用.obj文件作为引擎，将其文本转换为语音，并与我的网络摄像头一起使用。代码如下：

import pygame
import OpenGL
from pygame.locals import *
from OpenGL.GL import *
from OpenGL.GLU import *
import pywavefront

scene = pywavefront.Wavefront('DELPHI_1.0.obj', collect_faces=True)

scene_box = (scene.vertices[0], scene.vertices[0])
for vertex in scene.vertices:
    min_v = [min(scene_box[0][i], vertex[i]) for i in range(3)]
    max_v = [max(scene_box[1][i], vertex[i]) for i in range(3)]
    scene_box = (min_v, max_v)

scene_size = [scene_box[1][i]-scene_box[0][i] for i in range(3)]
max_scene_size = max(scene_size)
scaled_size = 5
scene_scale = [scaled_size/max_scene_size for i in range(3)]
scene_trans = [-(scene_box[1][i]+scene_box[0][i])/2 for i in range(3)]

def Model():
    glPushMatrix()
    glScalef(*scene_scale)
    glTranslatef(*scene_trans)

    for mesh in scene.mesh_list:
        glBegin(GL_TRIANGLES)
        for face in mesh.faces:
            for vertex_i in face:
                glVertex3f(*scene.vertices[vertex_i])
        glEnd()

    glPopMatrix()

def main():
        pygame.init()
        display = (800, 600)
        pygame.display.set_mode(display, DOUBLEBUF | OPENGL)
        gluPerspective(45, (display[0] / display[1]), 1, 500.0)
        glTranslatef(0.0, 0.0, -10)

        while True:
            for event in pygame.event.get():
                if event.type == pygame.QUIT:
                    pygame.quit()
                    quit()

                if event.type == pygame.KEYDOWN:
                    if event.key == pygame.K_LEFT:
                        glTranslatef(-0.5,0,0)
                    if event.key == pygame.K_RIGHT:
                        glTranslatef(0.5,0,0)
                    if event.key == pygame.K_UP:
                        glTranslatef(0,1,0)
                    if event.key == pygame.K_DOWN:
                        glTranslatef(0,-1,0)

            glRotatef(1, 5, 1, 1)
            glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT)

            glPolygonMode(GL_FRONT_AND_BACK, GL_LINE)
            Model()
            glPolygonMode(GL_FRONT_AND_BACK, GL_FILL)

            pygame.display.flip()
            pygame.time.wait(10)

main()

我该怎么做？我也一直在引用斯坦福兔Python代码。谢谢